APPARATUS AND METHOD FOR CONTROLLING POWER SUPPLY

• Main Author: KITAMURA YASUKAZU
• Format: Patent
• Language: English; Japanese
• Published: 08.06.2015
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CALCULATING; COMPUTING; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; CORRECTION OF TYPOGRAPHICAL ERRORS; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; GENERATION; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; PERFORMING OPERATIONS; PHYSICS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

PROBLEM TO BE SOLVED: To improve conversion efficiency of an AC/DC converter in consideration of characteristics of the AC/DC converter.SOLUTION: A power supply controller includes: an AC/DC converter that subjects a commercial power supply to AC/DC conversion; a current detection means for detecting an input current into the AC/DC converter; and a voltage changeover control part that determines an output voltage of the AC/DC converter while detecting the input current when a load, to which an output power of the AC/DC converter is supplied, is in an energy saving mode. 【課題】ＡＣ／ＤＣコンバータの特性を考慮に入れた上で、ＡＣ／ＤＣコンバータの変換効率を改善する。【解決手段】商用電源をＡＣ／ＤＣ変換するＡＣ／ＤＣコンバータと、前記ＡＣ／ＤＣコンバータへの入力電流を検知する電流検知手段と、前記ＡＣ／ＤＣコンバータの出力電力が供給される負荷が省エネモードのときに、前記入力電流を検知しながら前記ＡＣ／ＤＣコンバータの出力電圧を決定する電圧切替制御部を有する。【選択図】図２